Thanks for catching that I will fix it in 1.0 if we decide to include it in repos, since Mozilla is stopping production on sunbird. Lightning might stay around but that is my main concern. If i get time in next few months i will fix it with a few other things and push to my PPA.

The reason i statede "next few months" is because i am having eye surgery starting on june 8th and most likely going through until mid-end of august